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308394 (2005 SD44)
Classification: Main-belt Asteroid          SPK-ID: 2308394
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0200554755070493 7.9539e-08  
a 3.153323694577707 4.9624e-08 au
q 3.090082288455305 2.6408e-07 au
i 10.57734408911666 9.2565e-06 deg
node 6.941995451327217 3.4136e-05 deg
peri 34.161849244102 0.00017944 deg
M 204.0240239350051 0.00017742 deg
tp 2459886.648423940296
(2022-Nov-03.14842394)
0.0010118 TDB
period 2045.272872570928
5.60
4.828e-05
1.322e-07
d
yr
n .1760156333308603 4.1549e-09 deg/d
Q 3.216565100700108 5.0619e-08 au
  Orbit Determination Parameters
   # obs. used (total)      182  
   data-arc span      7091 days (19.41 yr)  
   first obs. used      1999-11-11  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58722  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 04:44:06  

Additional Information
 Earth MOID = 2.0981 au 
 Jupiter MOID = 1.855 au 
 T_jup = 3.180 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO455272  

308394 (2005 SD44)          Discovered 2005-Sep-24 by Spacewatch at Kitt Peak
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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